I'm benchmarking JBC writes with our application POJOs (80% update, 10% create, 10% delete). So far it is too slow for our requirements, but i haven't spent a lot of time tuning it yet. The topology of the bench is: -there are two nodes, on a local network -i write to a node A (always the same), and writes are replicated to the other node B. I profiled A with Visula VM, and 90% of the time is spent in java.util.concurrent.ThreadPoolExecutor$Worker.run. VVM also says that this is called by threads like "OOB-something", and that all the time is spent in the "self-time" of the Worker.run method. What do these symptoms mean and how can i speed up my writes? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4269825#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...